Methods Sixteen patients with CSB were performed CT and MRI examinations of the head, and 13 patients with nasopharyngeal carcinoma (NPC) and 11 patients with pituitary adenoma (PA) which invaded the skull base were selected as control.

• 方法 16例颅底脊索瘤和侵犯颅底的 13例鼻咽癌、11例垂体瘤患者作了头颅CT、MRI检查 ;